So the first time I animated sync dialogue for a film I said, "I am so going to do full animation because no one expects an anime influenced style to do lipsync." And so I did, and it kind of sucked because I drew lip shapes for every single vowel. Then in a 3D Animation class, my professor, Mark Reisch explained to us how people are actually very lazy about moving their mouths. At this moment I actually forget the more scientific breakdown of how mouths move based on shapes. But I remember that one good way to tell is to say the dialogue yourself and actually listen to the sound and write it out, for example, "I think it'll be fun" as, "Ayee-tink-ittle-beeh-fahn" Another good idea of course, that goes for all forms of animation is to actually record yourself doing the action and use it as a reference (much like references for still art). It's actually a very good way to work. It's quite common for animators to at least act out wh
